There's a research that winter sunlight in northern latitudes just does not conv... | Hacker News

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		rini17 18 days ago \| parent \| context \| favorite \| on: Vitamin D and Omega-3 have a larger effect on depr... There's a research that winter sunlight in northern latitudes just does not convert precursors to vitamin D. Even when it's shining, no matter how long you are outside.

7952 17 days ago [–]

And I guess you need uncovered skin which can be tricky in a cold winter.

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